Can't say, as I don't have D7000. But the A100 earpads are very very soft. They are also big enough to be comfortably placed around the ears. I can feel no pressure and no discomfort after hours of listening.

I have HD650 with Cardas cable. When driven by Graham Slee Solo, to my ears HD650 outperforms A100 in terms of sound stage, details and dynamics. So, with $500, there are possibly some better choices. A100 is anyhow closed-type cans. Open cans still have their strength.

I wouldn't say A100 is the best sounding Denon too. Although I don't have D7000, I believe price tells the difference. The best sounding Denon should be D7000.

Having said that, if we're only talking about portable, closed-type, easily-driven cans, then I would nominate A100 to be top of the list.